Wire-drawing machine.



No. 649,783. Patented May I5, I900. M. VON WATZESCH.

WIRE DRAWING MACHINE;

(Application filed Jan. 3, 1899.)

(No Model.)

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MORITZ VON "WATZESCH, OF OBERSCHGNIVEIDE, GERMANY, ASSIGNOR TO CURT lVEYHMANN, OF BERLIN, GERMANY.

WIRE DRAWING MACHINE.

SPECIFICATION forming'part of Letters Patent No. 649,783, dated. May 15, 1900.

Application filed January 3. 1899. Serial No. 700,978. (No model.)

T (all 10/1/0712 it may B L B M nor to slide in radial directions between suit- Be itknown that I, MORITZ voN WATZESCH, able guides provided on the disk I). On the a subject of the Emperor of Austria-I'lungary, shaft w a sleeve on is arranged to move up residing at Oberschonweide, near Berlin, in and down, while it is prevented from turning 55 the Kingdom of Prussia, Germany, have inby suitable feathers. The sleeve 121 has provented certain new and useful Improvements j ections or arms on, which are connected with in lVire-Drawing Machines, (for which Curt the friction-jaws b by means of the rods 0 lVeyhmann, of Berlin, has applied on my beand the links a. The rods 0 are adjustable half for a patent in Germany on the 5th of 00- in their lengths, they being divided each into 6o 10 tober, 1898, and in Belgium, France, Great two halves, provided with right and left hand Britain and Ireland, Austria, and Hungary threads and provided with the nuts 0, fitting on the 6th of December, 1898,) of which the thereon. The nuts care so adjusted that the following is a specification. links '12 are caused to bear against the nave My invention relates to improvements in of the disk I) while they are pressing the fric- 65 i5 wire-drawing machines in which a vertical tion-jaws I) through the rods 0 against the shaft driven from some source transmits its rim of the friction-disk a in case the sleeve 'm revolution to the wire-drum above on which is moved downward. Thereby the frictionthe wire drawn is to be wound; and the obclutch will be engaged to transmit the motion jeets of my invention are, first, to provide for from the bevel-wheel r to the vertical shaft 70 a friction-clutch between the driving-gear w for revolving the wire-drum T. If, on the and the vertical shaft, so as to place the wirecontrary, the sleeve m is moved upward, the drum entirely under the control of the operafriction-clutch will be disengaged. tor; second, to provide foralever mechanism A lever V, preferably consisting in two to actuate the friction-clutch, and, third, to side parts 11 c, connected at the ends and 75 provide for a device for regulating said lehaving its axle 0 about in the middle, is ver mechanism. Iattain these objects by the pivoted at the frame g on the right side of mechanism illustrated in the accompanying the shaft w in suitable bearings 12 c Andrawings, in which-- other lever U, preferably of a similar con- Figure l is an elevation of the apparatus, struction and having its axle u at the one 80 the friction-clutch being partly shown in secend, is pivoted at the frame 9 on the left side tion 5 and Fig. 2 is a horizontal section on the of the shaft win suitable bearings a it. The

line 'y z in Fig. 1. two side parts a a of this lever U are so ar- Similarlettersreferto similarparts throughranged as to leave free space for the first out the two views. lever V. The lever U is connected with the 85 The vertical shaft w, carrying the wiresleevem by the same pins t t as the lever V. drum T, is pivoted in the frame 9 and is to The consequence of this arrangement is that be driven by the bevel gear-wheel r, mounted when the free end a" of the one lever U is loosely upon it. The bevel gear-wheel r is lowered the free end v of the other lever V driven from some source by means of the will be raised, and vice versa. 0 4o shaft and thebevelgear-wheel. (Indicated by For the sake of convenience in operating the dotted lines.) Between the driving bevel the apparatus the two levers U and V are gear-wheel r and the shaft to a friction-clutch preferably arranged as treadle-levers, their is inserted, which consistsin the friction-disk cross-pieces and if at the free ends, rea, connected rigidly with the bevel-wheel '1' spectively, serving as foot-steps. Then the 95 in the disk I), keyed upon the shaft 10, and in operator need only press down upon either several friction-jaws b. The friction-disk a treadle for moving the sleeve m up or down. may have on its internal face annular ribs a, On pressing down the treadle U the operator and in a similar manner the friction-jaws U- may at his judgmentexert more or less power, may have ribs b corresponding with the reand thereby regulate the pressure between too cesses between the annular ribs a. The fricthe friction-jaws h and the friction-disk a, so tion' jaws Z) are arranged in someknown manthat the friction between those parts is more or less increased, and accordingly a larger or smaller amount of power is transmitted through the shaft 10 to the wire-drum T. The power transmitted may then be again decreased by pressing down more or less upon the other treadle V. Thus the frictionclutch is placed entirely under the control of the operator. This is an important advantage for the wire-drawing,which has hitherto not been obtained in such a highly-satisfactory manner. The known apparatus provided with a clutch-couplingt'. 6., a clutch the two members of which have projections capable of en:

gaging in recesses of the other memberis worthless because it is liable to break down and to other inconveniences, owing to the heavy shocks on throwing the clutch-couplin g in and out of gear. Also the wire is very liable to breaking off or to undue strain and other damages. Another known apparatus which is provided with a disk (similar to the disk Ct in the accompanying drawings) surrounded by a brake-band, the two ends of which are connected with two levers of unequal length on an axle pivoted in a casing inclosing the whole, has been found to be unfit for the wiredrawing.- The brake-band does not produce a uniform pressure between it and the disk, and hence this pressure cannot be regulated at pleasure or to a. nicety according to the requirements of the wire-drawing. In all cases the speed of the wire-drum is limited and the wire-drawing is rendered difficult. My apparatus, on the contrary, is by its arrangement capable v of attaining a larger speed, whereby the production of wire is in proportion increased. All shocks and all the inconveniences hitherto encountered in the wire-drawing are avoided by the new friction-clutch arrangement. The wire-drawing machine can be used for a variety of wire thicknesses and strengths. The operator will soon become accustomed to the management of the apparatus and know what pressure he should exert upon the treadles on starting and during the Work for the drawing of a certain Wire of any strength and description, so as to prevent the wire from being broken or damaged and to avoid undue pressure and needless sliding of the frictionclutch. From the position of the two treadles U and V the operator will know at a glance what power is being transmitted. The device for shortening and lengthening the rods 0 inside the friction-clutch will enable the operator to adjust the friction-clutch according to the wear and tear, also to the power to be transmitted. The treadle-levers U and V are preferably equilibrated, so that the sleeve m may remain in anyposition. If needful, counterweights may be placed on or connected with the treadle-levers in some known manner.

The apparatus shown and described may be modified as far as the constructive details are concerned. The ribs a, b of the frictiondisk at and the friction-jaws b, respectively, may be replaced by smooth faces. The number of the friction-jaws b may be chosen at pleasure. The driving gear-wheel r is shown as a bevel-wl1eel;butit may be a common gearwheel or a pulley, and so on. In addition to the nut c counter-nuts may be provided on each rod 0. The construction of the connection between the two lovers U V and the sleeve m may be altered.

W'hat I claim as my invention, and desire to secure by Letters Patent, is

1. In a wire-drawing machine, the combination with a friction-clutch on the wire-drum shaft, of .a sleeve mounted movably on said shaft above said friction-clutch and connected with the latter by suitable means for engaging and disengaging the same, a first lever pivoted on the one side of said shaft, the one end of which engages in said sleeve and the other end of which is provided with a treadle to be pressed down for shifting said sleeve in the one direction, and a second lever pivoted on the other side of said shaft and consisting of two side parts, which surround said first lever leaving free space for same and engage in said sleeve, while the free ends are connected near the treadle of said first lever by a treadle to be pressed down for shifting said sleeve in the opposite direction, substantially as set forth.

2. In awire-drawing machine, the combination with a friction-clutch for transmitting the power from the driving gear-wheel to the wiredrum shaft, of a sleeve mounted movably on said shaft for engaging and disengaging said friction-clutch, and two levers placed in the same vertical center plane and pivoted on opposite sides of said shaft and arranged to engage by the same pins in said sleeve, while their free ends are provided with treadles near each other, so that on pressing the one treadle downward the other treadle will move upward and vice versa, substantially as set forth.

3. In a wire-drawing machine, the combination with a friction-clutch for transmitting the power from the driving gear-wheel to the wiredrum shaft, of a sleeve mounted movably on said shaft for engaging and disengaging said friction-clutch, a first lever pivoted on the one side of said shaft, the one end of which engages in said sleeve by pins and the other end of which is provided witha treadle to be pressed down for shifting said sleeve in the one direction, and a second lever pivoted on the other side of said shaft and consisting of two side parts, which surround said first lever leaving free space for same and engage in-said sleeve by the same said pins, their free ends being connected near the treadle of said first lever by a treadle to be pressed down for shifting said sleeve in the opposite direction, substantially as set forth.

4:. In a wire-drawing machine, the combination with the frame and the drum-shaft, of gearing to impart movement to the shaft, a clutch through which said movement is transmittod,an d two levers f ulcru med on the frame,

IIO

the fulcra of the levers being at opposite sides of the shaft, and the levers having connection with the clutch and being extended laterally beyond the frame both in the same direct-ion.

5. In awire-drawing machine, the combina tion with the frame and the drn m-shaf t mount ed therein, of gearing serving to impart move ment to the shaft, a clutch through which said movement is transmitted, and two levers fulcrumed on the frame and extended laterally beyond the frame both in the same direction, the fulcra of the levers being at opposite sides of the shaft, and the levers having pivotal connection with the clutch to control the same, the axis of which connection is common to both levers.

6. In a Wire-drawing machine, the comhination with the drum-shaft, of gearing serving to impart movement thereto, a clutch through which such movem out is transmitted, and two levers fulcru med at opposite sides of the shaft and having connection with the clutch, to control the same, the levers being extended both in the same direction, and being approximately at the same level and each lever being provided with a treadle, permitting an operator to st ,nd with one foot on each treadle.

7. I11 a wire-drawing machinc,tl1e combination with the drum-shaft, of gearing serving to impart movement thereto, a clutch through which such movement is transmitted, and two levers pivotally connected with the clutch, the axes of such connection being common to both levers, and the levers having separate andjndependent fulcra, at approximately the same level, whereby the movement of one le-- ver causes an opposite movement of the other lever.

8. In a wire-drawing machine, the combination with a frame, of a drum-shaft mounted intermediately therein, gearing for driving the shaft, a clutclrthrough which the move ment of the gearing is transmitted to the shaft, and two levers fnlcrnmed on the frame at opposite sides of the shaft, the fulera of the levers being essentially in the same plane, and the levers having pivotal connection with a part of the clutch at a point common to both levers, the lovers being extended from the frame both in the same direction.

Witnesses:

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